If Microsoft gave away Windows 2000s source code....
Win2K was really, really good, as was XP after SP2. Nice, stable, rock solid and fast... They did well with Win7 as well IMHO, but not as well as they could have...
If OS X was released to all x86 computers (legally, thus not considering hackintosh distros), it would have swept Windows away though, considering the rock solig UNIX kernel it employs. I'm not a fan of Apple though (at least not their hardware or their marketing), but I have to take my hat off for OS X, that sh*t is just plain beautiful
M$ really needs to get in the saddle and learn from its competitors on the OS market, they have done that a little with Windows 8, but the implementation is shoddy at best. Metro is probably the biggest mistake, considering it's obviously made for touchscreens (which a desktop very rarely has because of ergonomics)
Also, a thing I miss the most on Windows, is the ability to have multiple desktops in the style of OS X and many linux distros out there...
all in all I really want a proper, lean, unlimited Windows OS, ReactOS is a good candidate, but the project is sadly progressing far too slowly....
Dont get me wrong.. I like XP, but some how its not the same as 2000. Although I do like Windows 7 but at the end of the day it still has bits of that horrible OS called vista (<--- Excuse my language) still cursing it.
I honestly can't think of anything I like better about Win2000 than XP. Win2000 was great but XP was a really natural progression too.
Vista was an attempt to shove Windows 7 out the door while it was still half baked. I don't consider the similarities between Vista and 7 to be "bits of Vista", more like the other way around. To be fair they needed to get something out the door, it had been like 5 or 6 years since XP.